Version 27.10. When working an image it goes from correct appearance ie bright to suddenly very dark & then back to correct does it al the time. not happening when using Lightroom classic etc etc . Any ideas ?

​@roberta18873232 wrote: “Version 27.10.  Windows 11.”

You posted to Photoshop for Mobile, which does not run on Windows. 

Are you using Photoshop for Desktop? Their forum is here: 

https://community.adobe.com/p/photoshop

If staff does not move your post, then repost in the PS forum.

Jane

Hi ​@roberta18873232 , Thanks for reaching out to the Photoshop Mobile Community Forums! Let's try to figure out this issue. What version of Photoshop are you using, and what is your OS information? Does this happen with all images or just particular ones?

In the meantime, you can try a few things:

1. Adjust Display Settings: Sometimes, display settings can affect how images appear. Ensure that the display settings in the software are configured correctly.

2. Delete Cache: If applicable, try deleting the cache folder for the software. This can help resolve rendering issues:

   • For Lightroom Classic, go to Edit > Preferences > Performance panel and click the "Purge Cache" button.

   • For other software, refer to its specific method for clearing cache.

3. Test with Different Images: Try using different images to see if the problem persists across all files or just specific ones.

4. Reinstall the Software: If the issue continues, try uninstalling and then reinstalling the app.

If none of these steps work for you, please send us the requested information so we can continue troubleshooting. I hope this helps! ^CH